/*
 * Copyright 2015-2019 The OpenZipkin Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */
package zipkin2.storage.cassandra.v1;

import com.datastax.driver.core.Cluster;
import com.datastax.driver.core.ConsistencyLevel;
import com.datastax.driver.core.Statement;
import com.datastax.driver.core.WriteType;
import com.datastax.driver.core.exceptions.DriverException;
import com.datastax.driver.core.policies.RetryPolicy;

/** This class was copied from org.twitter.zipkin.storage.cassandra.ZipkinRetryPolicy */
final class ZipkinRetryPolicy implements RetryPolicy {

  public static final ZipkinRetryPolicy INSTANCE = new ZipkinRetryPolicy();

  private ZipkinRetryPolicy() {}

  @Override
  public RetryDecision onReadTimeout(
      Statement statement,
      ConsistencyLevel cl,
      int requiredResponses,
      int receivedResponses,
      boolean dataRetrieved,
      int nbRetry) {
    return RetryDecision.retry(ConsistencyLevel.ONE);
  }

  @Override
  public RetryDecision onWriteTimeout(
      Statement statement,
      ConsistencyLevel cl,
      WriteType writeType,
      int requiredAcks,
      int receivedAcks,
      int nbRetry) {
    return RetryDecision.retry(ConsistencyLevel.ONE);
  }

  @Override
  public RetryDecision onUnavailable(
      Statement statement,
      ConsistencyLevel cl,
      int requiredReplica,
      int aliveReplica,
      int nbRetry) {
    return RetryDecision.retry(ConsistencyLevel.ONE);
  }

  @Override
  public RetryDecision onRequestError(
      Statement statement, ConsistencyLevel cl, DriverException e, int nbRetry) {
    return RetryDecision.tryNextHost(ConsistencyLevel.ONE);
  }

  @Override
  public void init(Cluster cluster) {
    // nothing to do
  }

  @Override
  public void close() {
    // nothing to do
  }
}
